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| //===- llvm/unittest/Support/raw_ostream_test.cpp - raw_ostream tests -----===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "llvm/Support/Format.h"
#include "llvm/Support/raw_sha1_ostream.h"
#include "gtest/gtest.h"
#include <string>
using namespace llvm;
static std::string toHex(StringRef Input) {
static const char *const LUT = "0123456789ABCDEF";
size_t Length = Input.size();
std::string Output;
Output.reserve(2 * Length);
for (size_t i = 0; i < Length; ++i) {
const unsigned char c = Input[i];
Output.push_back(LUT[c >> 4]);
Output.push_back(LUT[c & 15]);
}
return Output;
}
TEST(raw_sha1_ostreamTest, Basic) {
llvm::raw_sha1_ostream Sha1Stream;
Sha1Stream << "Hello World!";
auto Hash = toHex(Sha1Stream.sha1());
ASSERT_EQ("2EF7BDE608CE5404E97D5F042F95F89F1C232871", Hash);
}
TEST(sha1_hash_test, Basic) {
ArrayRef<uint8_t> Input((const uint8_t *)"Hello World!", 12);
std::array<uint8_t, 20> Vec = SHA1::hash(Input);
std::string Hash = toHex({(const char *)Vec.data(), 20});
ASSERT_EQ("2EF7BDE608CE5404E97D5F042F95F89F1C232871", Hash);
}
// Check that getting the intermediate hash in the middle of the stream does
// not invalidate the final result.
TEST(raw_sha1_ostreamTest, Intermediate) {
llvm::raw_sha1_ostream Sha1Stream;
Sha1Stream << "Hello";
auto Hash = toHex(Sha1Stream.sha1());
ASSERT_EQ("F7FF9E8B7BB2E09B70935A5D785E0CC5D9D0ABF0", Hash);
Sha1Stream << " World!";
Hash = toHex(Sha1Stream.sha1());
// Compute the non-split hash separately as a reference.
llvm::raw_sha1_ostream NonSplitSha1Stream;
NonSplitSha1Stream << "Hello World!";
auto NonSplitHash = toHex(NonSplitSha1Stream.sha1());
ASSERT_EQ(NonSplitHash, Hash);
}
TEST(raw_sha1_ostreamTest, Reset) {
llvm::raw_sha1_ostream Sha1Stream;
Sha1Stream << "Hello";
auto Hash = toHex(Sha1Stream.sha1());
ASSERT_EQ("F7FF9E8B7BB2E09B70935A5D785E0CC5D9D0ABF0", Hash);
Sha1Stream.resetHash();
Sha1Stream << " World!";
Hash = toHex(Sha1Stream.sha1());
ASSERT_EQ("7447F2A5A42185C8CF91E632789C431830B59067", Hash);
}
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